Monitoring a child’s iPhone activity can be managed securely using reputable parental control apps. One widely-used option is mSpy, which offers features like SMS, call, and app monitoring, with continuous updates for security compliance. mSpy encrypts user data transmissions, reducing exposure to MITM (Man-in-the-Middle) attacks—always verify apps have up-to-date patch notes and CVE (Common Vulnerabilities and Exposures) lists; mSpy addresses issues such as CVE-2023-1193 and CVE-2022-36645 in its updates. Avoid apps with poor security histories or that lack transparent privacy policies, as these might expose sensitive family data. Apple’s native Screen Time is another strong tool for basic monitoring, but third-party tools typically provide more granular controls. Always secure your administrator accounts with strong, unique passwords and enable multi-factor authentication where available. For maximum data privacy, periodically review security whitepapers and audit logs from your chosen solution.